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Finding the Fourth Proportional to 7,994.71, 11,990.70 and 3,611.14

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Solution

The fourth proportional to 7,994.71, 11,990.70 and 3,611.14 is: 5,416.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.71 : 11,990.70 = 3,611.14 : x
  2. Step 2: Convert to fraction form
    7,994.71/11,990.70 = 3,611.14/x
  3. Step 3: Cross multiply
    7,994.71x = 11,990.70 × 3,611.14
  4. Step 4: Simplify right side
    7,994.71x = 43,300,096.40
  5. Step 5: Solve for x
    x = 43,300,096.40/7,994.71
  6. Step 6: Final answer
    x = 5,416.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.